I would like start a blog about a general topic, for example: programming, learning languages (English, Spanish, Korean, Japanese, Chinese, French, Italian, etc.), history, engineering, math, opinion personal, and other topics that I like. I am learning about it, but I always watched blogs about only one topic and not multiple topics on the Internet. Where could I ask about how make a blog like this on the Internet?
I saw only two places in:
Academia and Writing on Stack Exchange. Where could I ask about it here?
Please help me to find an excellent place for asking here.
EDIT - UPDATE
Okay, I want to make a blog personal where I could share something that I know. For example, I am developer and I would share my code and my tips, etc. and I love math and I would like share article about math,etc and I like another topic like history, languages, etc., and then I would like find a place where I could ask about "How can I start a personal blog like this?"